mixtures
Published on Nov 29, 2015
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PRESENTATION OUTLINE
PHYSICAL
- Physically movings things to a certain pile/catergory
- Ex: taking a pile of blue blocks out of a pile of white blocks
FILTRATION
- Filtration is used when the substances in a mixture have different particle size
- is achieved by some form of interaction between the substance or objects to be removed and the filter
- Used in coffee makers
MAGNETS
- Used to draw out metals in a substance
DISSOLVING/BOILING
- Boiling is used when to decontaminate water
- to make a solution of, as by mixing with a liquid; pass into solution
- Carbonated drinks are made by dissolving carbon dioxide gas into liquid at high pressure.
- There is a solvent called aqua regia which can dissolve the noble metals including gold and platinum.
DISTILLIATION
- May seem like a chemical process
- There is a solvent called aqua regia which can dissolve metals including gold and platinum.
- Distilled water acts as a solvent in the body by dissolving nutrients so they can be assimilated and taken into every cell.
CHROMATOGRAPHY
- Food scientists study chromatograms to discover which colourings a food contains.
- TLC: scientists use thin layer chromatography (TLC) to study the substances that make up our genes
